i have a 94 camry xle v6. i've got a problem trying to reinstall the factory 86120-33110 stereo. it's a 15 pin plug. i've found the diagram for the wires coming from the car. the aftermarket plug i bought has a diagram that doesn't match the wires coming from the car. does anybody know where i can find the factory plug? does that car have a factory amp? on the harness it says amp imputs instead of speaker inputs. i'm so lost.